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- W2391908714 abstract "Au/Co3O4/CeO2 materials are prepared using conventional deposition-precipitation method. The effects of calcination temperatures and pretreatment conditions on the catalytic performance of Au/Co3O4/CeO2 for CO low-temperature oxidation in humid circumstance are investigated. The sample calcines at 443 K in flowing air exhibited good activity and stability for CO oxidation. 80% CO conversion rate can be achieved after 3 000 min with a feed gas contained 3.1%(φw) of water vapor. The physical and chemical properties of the Au/Co3O4/CeO2 samples are characterized by X-ray diffraction (XRD),temperature-programmed reduction (H2-TPR),and transmission electron microscopy (TEM) techniques. The characterized results show that the prepared material calcined at 443 K has a weak diffraction peak of gold species observed by XRD,the grain diameter of 3 nm by TEM and best redox property and the highest activity for CO oxidation by H2-TPR at prope calcined temperature." @default.
- W2391908714 created "2016-06-24" @default.
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- W2391908714 date "2009-01-01" @default.
- W2391908714 modified "2023-09-26" @default.
- W2391908714 title "Effects of Pretreatment Conditions on Redox Property over Au/Co_3O_4/CeO_2 Material" @default.
- W2391908714 hasPublicationYear "2009" @default.
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